{
  "params": {
    "type": {
      "type": "choice",
      "options": [
        "chunk",
        "spire",
        "floe"
      ],
      "default": "chunk",
      "label": "Type",
      "describe": "chunk (a heap of broken faceted ice blocks), spire (tall pointed ice shards leaning out of a base, like a glacier pinnacle), floe (a flat broken ice sheet with a few blocks on top, as if floating)."
    },
    "size": {
      "type": "range",
      "min": 0.5,
      "max": 8,
      "step": 0.1,
      "default": 2.5,
      "label": "Size",
      "describe": "Rough width in metres. 0.5 is a lump of ice, 8 a small iceberg."
    },
    "snow": {
      "type": "range",
      "min": 0,
      "max": 1,
      "step": 0.05,
      "default": 0.5,
      "label": "Snow",
      "describe": "How much snow caps the upward faces. 0 is bare blue ice, 1 thick snow on every top."
    },
    "seed": {
      "type": "range",
      "min": 1,
      "max": 50,
      "step": 1,
      "default": 4,
      "label": "Seed",
      "describe": "Changes the facets, block layout and shard angles. Scatter with different seeds so no two pieces of ice match."
    }
  },
  "presets": {
    "glacier spire": {
      "type": "spire",
      "size": 4,
      "snow": 0.3,
      "seed": 12
    },
    "drift floe": {
      "type": "floe",
      "size": 6,
      "snow": 0.8
    },
    "clear ice": {
      "type": "chunk",
      "size": 1.2,
      "snow": 0
    }
  },
  "night": null
}